Parts Needed to Flat Tow a 2015 GMC Yukon XL Denali Behind a Motor Home
Question:
Hi, I am going to be towing my 2015 Danali without adaptive cruise. The Manuel says I have to disconnect the Negative battery post on my vehicle. My question is, do you sell any other needed parts for me to us my 2015, like fuse disconnects? So I do not have to disconnect the Negative battery post? Is there any option so I do not have this procedure?
asked by: Donny H
Expert Reply:
To keep a maintenance charge on the battery I recommend using a harness such as # RM-146-7 with the tow bar wiring you will be using so that you can install a charge line kit, # RM-156-25, from the front of the truck to its battery.
The charge line kit uses the 12 volt power pin on your motorhome's 7-way to provide a maintenance charge to the battery on your 2015 GMC Yukon XL. It won't charge a dead battery but it will keep the truck's battery from dying while you're towing it.
We do not have any fuse bypasses listed for the 2015. Most likely, when the key is in the correct position for flat towing there is something that would drain the battery unless the battery is disconnected. Hence the manual saying to disconnect the battery. We do sell a battery disconnect, # RM-766, that makes it easier. Once installed all you need to do is flip a switch to disconnect the truck's battery.
To connect the motorhome and Yukon XL you need a base plate kit and tow bar. I like the Demco Classic base plates # DM9518309 because there's no additional peices to remove like with some other models. The Yukon XL is a big vehicle so I recommend the Dominator tow bar, # DM9511008, rated for 7,500 pounds. It also includes safety cables.
Next you will need a lighting solution you can use a magnetic kit such as # RM-2120, or a 6 diode kit # 154-792-118158.
And finally, most states now require supplemental braking on the vehicle being flat towed. One of the easiest systems to set up and use is the Even Brake proportional system # RM-9400. It will apply the Yukon brakes in proportion to how much the tow vehicle is braking. This is the easiest way to stop and it reduces wear and tear on both vehicles.
In order for the braking system to work properly you will also need a stop light switch kit, # RM-751463, and a 12 volt outlet kit # RM-9332.
Be sure to consult your Yukon XL owners manual for specific information on flat towing the vehicle. I have also included some helpful links to our series of help articles on flat towing for you.
Products Referenced in This Question
Roadmaster 6-Diode Universal Wiring Kit for Towed Vehicles with Separate Lighting
- Tow Bar Wiring
- Splices into Vehicle Wiring
- Diode Kit
- Universal
- Tail Light Mount
- Roadmaster
more information >
Demco Dominator Non-Binding Tow Bar - RV Mount - 2" Hitch - 7,500 lbs
- Tow Bar
- Hitch Mount Style
- Telescoping
- Aluminum
- 7500 lbs
- Fits Demco Base Plates
- Stores on RV
- Non-Binding
- Demco
more information >
Roadmaster 7-Wire to 6-Wire Flexo-Coil Kit
- Accessories and Parts
- Tow Bar Wiring
- Adapters
- 7 Round - Blade to 6 Round
- Coiled Cord
- Roadmaster
more information >
Roadmaster Battery Charge Line Kit for Towed Vehicles
- Accessories and Parts
- Tow Bar Wiring
- Battery Charge Line Kit
- Roadmaster
more information >
Roadmaster Standard Magnetic Tow Lights
- Tow Bar Wiring
- Bypasses Vehicle Wiring
- Removable Tail Light Kit
- 20 Foot Long Harness
- Universal
- Magnetic Mount
- Roadmaster
more information >
Roadmaster Stop Light Switch Kit
- Tow Bar Braking Systems
- Stop Light Switch
- Roadmaster
more information >
Roadmaster Battery Disconnect with Switch for Towed Vehicle w/ Flat Tow Brake System - Gas
- Accessories and Parts
- Tow Bar Wiring
- Auto Battery Disconnect
- Roadmaster
more information >
Roadmaster Even Brake Portable Flat Tow Brake System - Proportional
- Tow Bar Braking Systems
- Brake Systems
- Proportional System
- Recurring Set-Up
- Portable System
- Not Power Assist Brake Compatible
- Air Brakes
- Air Over Hydraulic Brakes
- Hydraulic Brakes
- Roadmaster
more information >
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